Oh Henry Bars

Why You’ll Love Oh Henry Bars Recipe

These bars are incredibly simple to make with pantry staples and minimal prep time. The oat base bakes up chewy and slightly caramelized, while the chocolate-peanut butter topping adds a creamy, indulgent finish. They’re perfect for potlucks, bake sales, after-school treats, or whenever you need a quick dessert that everyone will love. Plus, they slice beautifully and can be made ahead of time.

Ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

For the base:

• quick oats or old-fashioned oats

• unsalted butter

• brown sugar

• light corn syrup

• vanilla extract

For the topping:

• semi-sweet chocolate chips

• creamy peanut butter

Directions

1. Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking pan or line it with parchment paper for easy removal.

2. In a medium saucepan over medium heat, melt the butter. Stir in the brown sugar and corn syrup. Bring the mixture just to a gentle boil, stirring constantly. Remove from heat and stir in the vanilla extract.

3. Add the oats to the warm mixture and stir until fully coated.

4. Press the oat mixture evenly into the prepared baking pan, making sure it is firmly packed.

5. Bake for 12 to 15 minutes, or until the edges are lightly golden. Remove from the oven.

6. While the base is still warm, combine the chocolate chips and peanut butter in a microwave-safe bowl. Heat in 20–30 second intervals, stirring between each, until smooth and fully melted.

7. Pour the melted chocolate-peanut butter mixture over the warm oat layer and spread evenly with a spatula.

8. Allow the bars to cool at room temperature, then refrigerate for about 1 hour or until the topping is set.

9. Once firm, slice into squares or rectangles and serve.

Servings and timing

Servings: 12 to 16 bars
Prep time: 15 minutes
Bake time: 15 minutes
Chill time: 1 hour
Total time: Approximately 1 hour 30 minutes

Variations

Add chopped peanuts on top of the chocolate layer for extra crunch and a more traditional candy bar feel.
Use dark chocolate chips for a richer, less sweet flavor.
Swap creamy peanut butter for crunchy peanut butter to add texture.
Drizzle melted white chocolate over the top for a decorative finish.
Add a pinch of flaky sea salt on top before chilling to enhance the sweet and salty contrast.

Storage/Reheating

Store the bars in an airtight container at room temperature for up to 4 days. If your kitchen is warm, refrigerate them to keep the chocolate layer firm.

For longer storage, place the bars in a freezer-safe container with parchment paper between layers and freeze for up to 3 months. Thaw at room temperature before serving.

These bars do not require reheating, but if you prefer a slightly softer texture, let refrigerated bars sit at room temperature for 10 to 15 minutes before enjoying.

FAQs

Can I use old-fashioned oats instead of quick oats?

Yes, old-fashioned oats work well and will give the bars a slightly chewier texture.

Can I substitute honey for corn syrup?

Yes, honey can be used as a substitute. It may slightly alter the flavor but will still produce delicious results.

Do I need to refrigerate the bars?

Refrigeration helps the topping set faster and keeps it firm, but it is not strictly necessary if your kitchen is cool.

Can I make these bars gluten-free?

Yes, simply use certified gluten-free oats to ensure the recipe is gluten-free.

Why are my bars crumbly?

If the bars are crumbly, the oat mixture may not have been pressed firmly enough into the pan before baking.

Can I double the recipe?

Yes, you can double the recipe and bake it in a larger pan. Adjust the baking time slightly if needed.

Can I use natural peanut butter?

Natural peanut butter can be used, but make sure it is well stirred. The texture may be slightly softer.

How do I get clean slices?

Chill the bars completely and use a sharp knife. Wipe the blade clean between cuts for neat edges.

Can I add other mix-ins?

Yes, you can add chopped nuts, mini chocolate chips, or even shredded coconut to customize the bars.

Are these bars suitable for parties and bake sales?

Absolutely. They travel well, slice neatly, and are always a crowd favorite.

Conclusion

Oh Henry Bars are a simple yet irresistible dessert that combines a chewy oat base with a smooth chocolate-peanut butter topping. Easy to prepare and even easier to enjoy, these bars are perfect for sharing with family and friends or keeping on hand for whenever a sweet craving strikes.